In order to satisfy the Principle of Moment for an object in equilibrium, one needs to make sure that

• A. Sum of clockwise moments about pivot > Sum of anti-clockwise moments about pivot
• B. Sum of horizontal forces = Sum of vertical forces = 0
• C. Sum of clockwise moments about pivot = Sum of anti-clockwise moments about pivot
• D. Sum of clockwise moments about pivot < Sum of anti-clockwise moments about pivot